A ConcurrentAccessException indicates that the client
has attempted an invocation on a stateful session bean or singleton bean
while another invocation is in progress and such concurrent access
is not allowed.

The NoSuchEntityException exception is thrown by an entity bean
instance to its container to report that the invoked business method
or callback method could not be completed because of the underlying
entity was removed from the database.

Designates a method of a session bean that corresponds to a
create<METHOD> method of an adapted home or
local home interface (an interface that adapts an EJB 2.1 or earlier
EJBHome or EJBLocalHome client view respectively).